Kind of a Six-Trak on steroids, the Sequential Circuits MulTrack is a pure mid-eighties no-knob synth, but with great sequencer, filter, modulations and multitimbral capabilities it may be worth trying for accessing the famous SCI sound.

No need to present this legendary three VCOs monophonic synth. The Minimoog is considered to be the very first compact synthesizer, designed for musicians by the genius engineer Robert Moog. With its big fat sound due to its quality de-tunable VCOs and its famous transistor-ladder Low-Pass VCF, it became a reference for lead and bass sounds.

6 voices polyphonic synthesizer, the Oberheim Matrix 6 is the mid eighties descendant of the legendary Oberheim synthesizers serie like the OBXa, Xpander, or more closer the Matrix from which it takes most of its characteristics, from a fraction of the price. It features 2 DCOs per voice, 1 Low-Pass VCF, 3 envelopes, 2 LFOs, a 100 patches memory and MIDI implementation. You will have to program it with a controller if you want to get access to this vintage pearl without going crazy due to the lack of knobs!

The Roland Juno-106 is a 6 voices polyphonic vintage analog synthesizer made in 1984. 1 DCO (saw/square/pulse) + Noise + Sub osc per voice, HPF and LPF 24dB/oct, one LFO and one ADSR envelope to modulate DCO and VCF, analog chorus: not really a synthesis master but a lot of personnality, and this Juno model features patch memory (instead of Juno-6) and full MIDI implementation (instead of Juno-60).

The SCI Pro One is an analog monophonic synth, similar in what a monophonic Prophet 5 would be. With 2 VCO (with layerable Saw/Square and Saw/Square/Tri waveforms) and a noise generator, 1 LFO (Tri/Saw/Square), 2 ADSR envelopes (routing to VCA and VCF), a mini-sequencer (2×40 notes), an arpeggiator (up or up/down), CV/Gate input and output, VCF and audio inputs, the most interesting thing is the modulation routing possibilities such linear FM, filter audio modulation, ring-mod like FXs, VCO sync… A must have monosynth in all synth’s lover setup!

Not an analog beauty here but an obscure vintage keyboards series made by Seiko in 80’s. The Seiko DS-202 keyboard is a simple home arranger (tones + rhythm + bass chord system) with a great analog chorus but an interesting thing here is that sounds generated are not made from subtractive, FM or PCM synthesis but from additive synthesis. And the Seiko DS-310 synthesizer module offers the possibility to fully edit it!

To finish, the Seiko DS-320 module is a sequencer, since the DS202 doesn’t have MIDI ports (you will have to get the Seiko DS-250 for MIDI capabilities, and to oscillator layers instead of one but no more rhythms or bass chords).